Continuing our conversation on Muslim Unity/Disunity, let us add this observation:
One reason why people disagree and act differently -- Muslims as well as others -- is the difference in their "Intentions."
In their "Niyyaat" -- plural for Niyyat.
In other words, people disagree -- and even work against each other -- because they want different things. Because they have different agendas.
Or, maybe, they are fighting to take possession of the same thing: wealth, woman, title, job, territory, you name it.